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Unable to import AVCHD (BMDV) movies to photos app since High Sierra update

I've been using Sony RX100 Mk2 Camera for a few years. A great camera with excellent picture quality.

It stores movie in AVCHD format.

There has been no problem importing pictures and movies to osx native photos app up to now.


However, since I've updated my iMac to high sierra, photos app no longer recognizes movie files in camera. It recognizes and is able to import still pictures fine, but not movie files.


I'm pretty sure it is not the problem of camera or memory card since photos app in my MacBook Pro, which I've not yet updated to High Sierra, works fine.


Recent update (additional update for macOS High Sierra released on 5th Oct.) does not solve this problem.


Anyone found a way to work around this?

iMac, macOS High Sierra (10.13)

Posted on Oct 10, 2017 5:22 PM

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Posted on Jan 1, 2018 8:14 AM

AVCHD media (including the .MTS files contained in there) use AC3 audio tracks.

Check if you have an older A52Codec.component installed in /Library/Audio/Plug-Ins/Components. Remove it as AC3/A52 codecs are build-in to macOS nowadays. After rebooting, AVCHD import should work fine again.


The third party software Perian installes this incompatible version of an AC3 codec in the components folder, so uninstalling this might have the same effect.

67 replies

Dec 12, 2017 8:18 PM in response to Mickeyfilm

Any word on this? My students are giving presentations that I can now record, but if I want to get them off the camera I'm SOL unless Apple comes through and soon.


Note I just downloaded the newest "update" hoping that would fix things. It didn't. I get now some error 1718449215 and nothing happens. I can't even open the movies out of the AVCHD file.

Dec 14, 2017 7:51 PM in response to flashinjapan

Hi Flash:


I spent 2 hours today with a Senior Apple Engineer. There is a go around... It's called VLC Media player. It will open the mts files in Apple. I've been trying to figure out how to tell Quicktime to use it so it will work with Premiere but so far I haven't been able to do that. The Apple engineer told me that they will be working hard on this the next days and will have update to fix it soon.

Jan 11, 2018 11:36 AM in response to baracude

Very unfortunate that I have to use iMovie or Quicktime as a workaround to importing videos that I never plan on doing much editing of except maybe a trim.


First, iPhoto lost (or never had) the ability to read exFAT cards (>32GB) and now Photos loses the ability to import AVCHD.


Frankly, that's a regression and a malicious one given there was obvious intent and no notification that I am aware of...

Jan 12, 2018 2:01 PM in response to baracude

I ran into this yesterday and it significantly screwed up my workflow and cost me an extra hour of time. Happened again today with a brand new SD card. Photos doesn't recognize videos on the card yet my MacBook running regular Sierra recognizes them just fine. Importing via-Media Encoder and VLC brings the files in with no audio.


This is ridiculous. COME ON APPLE.

Feb 1, 2018 12:14 PM in response to baracude

Really annoying to see how Apple goes with every new OS release the wrong way. I think this will be the last OS update I do when this bug is solved (if not, I'll return to Sierra). Each year less features and more problems with simple things like this one.


Sorry for the rant, but it's frustrating to remember the old slogans like "it just works!" being not relevant anymore with each new OS or iOS releases.

Feb 17, 2018 3:42 PM in response to baracude

I've called with Apple for 50 minutes and we have found a solution to import AVCHD video's in Photo's.


We uninstalled Perian and Flip for Mac from the preferences panel.


After that a NVRAM reset took place. (P+R+Command-Option during a restart)


Then I could open the video's from my camera to Quick Time and could save them as Quick time movie. After that I could move the file to Apple Photo's.


So, the program still can't import the files directly, but with this solution you again could use the AVCHD files on your Mac.

Feb 28, 2018 9:01 AM in response to baracude

on rx100,plug in to mac ,switch on as usual -- open photos , create a new folder eg sony video, then open the no name hard disk folder for the camera on desktop, then open the private folder, you see the avhd file , then open it but control-click it and on the drop menu click "show package contents , do the same again when it shows BDMV , open the stream folder and there are the individual videos with dates . select the ones you want and drag them into the folder you aready created in photos . Done

Its quite quick but ....

Apple should reinstate the original import or at least have the courtesy to say they were dropping it . Hours of wasted time Apple.

Unable to import AVCHD (BMDV) movies to photos app since High Sierra update

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